rearrange includes

git-svn-id: http://svn.osgeo.org/postgis/trunk@12151 b70326c6-7e19-0410-871a-916f4a2858ee
fix parse cleanup of reclassarg and add unit tests

git-svn-id: http://svn.osgeo.org/postgis/trunk@12152 b70326c6-7e19-0410-871a-916f4a2858ee